asyncrat | acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
12/07/2026, 13:06

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General

Target
acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
Size 756KB
Sample260712-qckrssct5y
SHA256 acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd
MD5 fb81c1838ff23c836f0ddc136859d009
SHA1 31584744cdd31a0fe924df68134a3a57cd2a6a9e
SHA512 d708fd0ebe6f90df37a5e22468fbcd56c015a350c5964e69342bcbece622257b514789ae055a05c19073f69d6023daa49881cf21767f3ec1c1d757f044f77a76
SSDEEP 12288:luyI3W/i3GvbQW3qXVddVuHpTy9EK4chL5O5HdoYUnDM6ShYfMQD1J:vIo6XVdiHpTy2KZhMF6YIDM1YMIX
TLSH
T1FAF402287BA9CE06D4EA37790E60F27253745ED9F914C2168FDABDEF7866B610508303
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

freshlogs.cloud-ip.cc:443

Mutex

l9mTYjhAA9Bp

Attributes

delay
3
install
true
install_file
Logs.exe
install_folder
%AppData%

aes.plain

Signatures

Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Executes dropped EXE 4 IoCs

pid	Process
2840	Logs.exe
1756	Logs.exe
5068	Logs.exe
4876	Logs.exe

SmartAssembly .NET packer 2 IoCs

Detects SmartAssembly .NET packer.

resource	yara_rule
behavioral2/memory/2764-7-0x0000000005B50000-0x0000000005B64000-memory.dmp	SmartAssembly
behavioral2/memory/2840-23-0x0000000004CC0000-0x0000000004CD4000-memory.dmp	SmartAssembly

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2764 set thread context of 3524	2764	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	89
PID 2840 set thread context of 5068	2840	Logs.exe	100
PID 1756 set thread context of 4876	1756	Logs.exe	101

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Logs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Logs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Logs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Logs.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3016	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
5108	schtasks.exe

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
2764	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
2764	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
2764	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
2764	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2764	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
Token: SeDebugPrivilege	3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 3564	2764	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	87
PID 2764 wrote to memory of 1524	2764	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	88
PID 2764 wrote to memory of 3524	2764	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	89
PID 2764 wrote to memory of 3524	2764	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	89
PID 2764 wrote to memory of 3524	2764	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	89
PID 2764 wrote to memory of 3524	2764	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	89
PID 2764 wrote to memory of 3524	2764	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	89
PID 3524 wrote to memory of 3164	3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	90
PID 3524 wrote to memory of 988	3524	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	92
PID 3164 wrote to memory of 5108	3164	cmd.exe	94
PID 988 wrote to memory of 3016	988	cmd.exe	95
PID 988 wrote to memory of 1756	988	cmd.exe	98
PID 2840 wrote to memory of 5068	2840	Logs.exe	100
PID 2840 wrote to memory of 5068	2840	Logs.exe	100
PID 2840 wrote to memory of 5068	2840	Logs.exe	100
PID 2840 wrote to memory of 5068	2840	Logs.exe	100
PID 2840 wrote to memory of 5068	2840	Logs.exe	100
PID 1756 wrote to memory of 4876	1756	Logs.exe	101
PID 1756 wrote to memory of 4876	1756	Logs.exe	101
PID 1756 wrote to memory of 4876	1756	Logs.exe	101
PID 1756 wrote to memory of 4876	1756	Logs.exe	101
PID 1756 wrote to memory of 4876	1756	Logs.exe	101

C:\Users\Admin\AppData\Local\Temp\acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
"C:\Users\Admin\AppData\Local\Temp\acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Users\Admin\AppData\Local\Temp\acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
  "C:\Users\Admin\AppData\Local\Temp\acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe"
  2⤵
  PID:3564
- C:\Users\Admin\AppData\Local\Temp\acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
  "C:\Users\Admin\AppData\Local\Temp\acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe"
  2⤵
  PID:1524
- C:\Users\Admin\AppData\Local\Temp\acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
  "C:\Users\Admin\AppData\Local\Temp\acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3524
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Logs" /tr '"C:\Users\Admin\AppData\Roaming\Logs.exe"' & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3164
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "Logs" /tr '"C:\Users\Admin\AppData\Roaming\Logs.exe"'
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:5108
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3BB7.tmp.bat""
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:988
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:3016
  - - C:\Users\Admin\AppData\Roaming\Logs.exe
      "C:\Users\Admin\AppData\Roaming\Logs.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1756
    - - C:\Users\Admin\AppData\Roaming\Logs.exe
        
        "C:\Users\Admin\AppData\Roaming\Logs.exe"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:4876

C:\Users\Admin\AppData\Roaming\Logs.exe
"C:\Users\Admin\AppData\Roaming\Logs.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Users\Admin\AppData\Roaming\Logs.exe
  "C:\Users\Admin\AppData\Roaming\Logs.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:5068

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmp3BB7.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp3BB7.tmp.bat
Size 148B
SHA256 4e9f40fad9220e3024b5318b21e65b211350592ef3abfc01dd802a820211cf40
MD5 ac420836801be024a05a1e2ce2226341
SHA1 5e65ae4965918cc0774c665b75b678f51f9c789f
SHA512 632cf306aeba3c9175f83c8b972c8e78f26eed8482a41c9570f70b7913a375f4f783eaf5c4304cc911c89c9deddc446808222497d61e7f55a64e065c90332197
TLSH
T117C02B4261C9EE0F2D09545323FBD48E9573BC1D3F40BF10E304800D6280C88F0E9346
MD5 SHA1 SHA512 TLSH

Submit Download

Logs.exe

Path C:\Users\Admin\AppData\Roaming\Logs.exe
Size 756KB
SHA256 acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd
MD5 fb81c1838ff23c836f0ddc136859d009
SHA1 31584744cdd31a0fe924df68134a3a57cd2a6a9e
SHA512 d708fd0ebe6f90df37a5e22468fbcd56c015a350c5964e69342bcbece622257b514789ae055a05c19073f69d6023daa49881cf21767f3ec1c1d757f044f77a76
SSDEEP 12288:luyI3W/i3GvbQW3qXVddVuHpTy9EK4chL5O5HdoYUnDM6ShYfMQD1J:vIo6XVdiHpTy2KZhMF6YIDM1YMIX
TLSH
T1FAF402287BA9CE06D4EA37790E60F27253745ED9F914C2168FDABDEF7866B610508303
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2764-8-0x0000000074DB2000-0x0000000074DB3000-memory.dmp

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memory/2764-2-0x0000000005D10000-0x00000000062CA000-memory.dmp

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memory/2764-4-0x00000000057F0000-0x00000000057FA000-memory.dmp

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memory/2764-5-0x0000000005970000-0x0000000005A0C000-memory.dmp

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memory/2764-6-0x0000000074DA0000-0x000000007555C000-memory.dmp

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memory/2764-7-0x0000000005B50000-0x0000000005B64000-memory.dmp

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memory/2764-0-0x0000000074DB2000-0x0000000074DB3000-memory.dmp

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memory/2764-9-0x0000000074DA0000-0x000000007555C000-memory.dmp

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memory/2764-10-0x0000000007DB0000-0x0000000007E54000-memory.dmp

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memory/2764-1-0x0000000000C00000-0x0000000000CC4000-memory.dmp

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memory/2764-3-0x0000000005830000-0x00000000058C2000-memory.dmp

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memory/2764-13-0x0000000074DA0000-0x000000007555C000-memory.dmp

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memory/2840-23-0x0000000004CC0000-0x0000000004CD4000-memory.dmp

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memory/3524-14-0x0000000074DA0000-0x000000007555C000-memory.dmp

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memory/3524-12-0x0000000074DA0000-0x000000007555C000-memory.dmp

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memory/3524-20-0x0000000074DA0000-0x000000007555C000-memory.dmp

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memory/3524-11-0x0000000000400000-0x0000000000412000-memory.dmp

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